Study Of Intermediate Outcome And Prognosis-related Risk Factors After Endoluminal Repair Of Abdominal Aortic Aneurysm

Objective:To investigate the clinical efficacy analysis of complex aneurysmal neck abdominal aortic aneurysms after abdominal aortic endoluminal repair,as well as to explore the risk factors associated with the occurrence of complications after EVAR.Methods: By retrospectively analyzing the data of 138 patients with abdominal aortic aneurysm who were admitted to our vascular thyroid surgery department for EVAR from January 2019 to January 2022,they were divided into complex aneurysmal neck group and non-complex aneurysmal neck group according to the anatomical features of the proximal aneurysmal neck,and clinical data and follow-up results were collected to compare the two groups in terms of basic information,anatomical features of the aneurysmal neck,anesthesia and preoperative laboratory results,etc.We compared the differences between the two groups in terms of basic information,anatomical features of the tumor neck,anesthesia and preoperative laboratory results,and regression analysis of the factors associated with complex tumor neck factors on the occurrence of postoperative complications of EVAR.Results: A total of 138 patients who underwent EVAR were included,including 65 cases(47.1%)in the complex tumor neck group and73 cases(52.9%)in the non-complex tumor neck group,and a total of 21 indicators of possible influencing factors were included in the analysis,including 15 items of basic clinical information and 6 items of anatomical features.After univariate analysis,the differences in gender and preoperative D-2 aggregation between the complicated aneurysmal neck group and the uncomplicated aneurysmal neck group were statistically significant(P < 0.05).patients in the group with and without complications after EVAR surgery differed in age,lymphocytes,hemoglobin,albumin,aneurysm diameter and thrombosis.logistic regression analysis showed that the aneurysmal degree of neck thrombosis and preoperative hemoglobin level were independent risk factors for the development of complications after EVAR(P < 0.05).Conclusion: 1.Comparing patients with complex aneurysmal abdominal aortic aneurysms undergoing EVAR with those with uncomplicated aneurysms,we found that complex aneurysmal factors did not affect the incidence of postoperative complications.2.Patients with low preoperative hemoglobin levels and aneurysmal neck thrombosis >50% are more likely to have complications after EVAR,and preoperative dynamic monitoring of hemoglobin needs to be enhanced and corrected in a timely manner,and preoperative careful assessment of the degree of aneurysmal neck thrombosis is also needed.It is also important to carefully assess the degree of tumor thrombosis before surgery to develop an individualized surgical plan.